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<li class="navelem"><a class="el" href="dir_90ffdbabf412cfdffe6b2193e0ce938a.html">libxrpl</a></li><li class="navelem"><a class="el" href="dir_4cb643486f27a568a0d40f174f670f35.html">protocol</a></li> </ul>
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<div class="headertitle"><div class="title">NFTokenID.cpp</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include &lt;xrpl/basics/base_uint.h&gt;</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include &lt;xrpl/json/json_value.h&gt;</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include &lt;xrpl/protocol/LedgerFormats.h&gt;</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;xrpl/protocol/NFTokenID.h&gt;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;xrpl/protocol/SField.h&gt;</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;xrpl/protocol/STArray.h&gt;</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include &lt;xrpl/protocol/STObject.h&gt;</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include &lt;xrpl/protocol/STTx.h&gt;</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include &lt;xrpl/protocol/TER.h&gt;</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &lt;xrpl/protocol/TxFormats.h&gt;</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &lt;xrpl/protocol/TxMeta.h&gt;</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &lt;xrpl/protocol/jss.h&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/algorithm.html">algorithm</a>&gt;</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/iterator.html">iterator</a>&gt;</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/memory.html">memory</a>&gt;</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/optional.html">optional</a>&gt;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/vector.html">vector</a>&gt;</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacexrpl.html">xrpl</a> {</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="keywordtype">bool</span></div>
<div class="foldopen" id="foldopen00023" data-start="{" data-end="}">
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"><a class="line" href="namespacexrpl.html#a494a744b51f3f84d074af0ba65bf0546"> 23</a></span><a class="code hl_function" href="namespacexrpl.html#a494a744b51f3f84d074af0ba65bf0546">canHaveNFTokenID</a>(<a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;STTx const&gt;</a> <span class="keyword">const</span>&amp; serializedTx, <a class="code hl_class" href="classxrpl_1_1TxMeta.html">TxMeta</a> <span class="keyword">const</span>&amp; transactionMeta)</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span>{</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordflow">if</span> (!serializedTx)</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <a class="code hl_enumeration" href="namespacexrpl.html#a2302c0748b98cd689ea7eea653eda396">TxType</a> <span class="keyword">const</span> tt = serializedTx-&gt;getTxnType();</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keywordflow">if</span> (tt != ttNFTOKEN_MINT &amp;&amp; tt != ttNFTOKEN_ACCEPT_OFFER &amp;&amp; tt != ttNFTOKEN_CANCEL_OFFER)</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// if the transaction failed nothing could have been delivered.</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">if</span> (transactionMeta.<a class="code hl_function" href="classxrpl_1_1TxMeta.html#a2b0df9b58fbbd4f3175b7c66d4bb1dc6">getResultTER</a>() != <a class="code hl_enumvalue" href="namespacexrpl.html#af4adbbe94a1cecf1bd3ad2c76ff1ea3da157dace29a657c58cdeb4f7fa19be976">tesSUCCESS</a>)</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span>}</div>
</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;uint256&gt;</a></div>
<div class="foldopen" id="foldopen00040" data-start="{" data-end="}">
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="namespacexrpl.html#acea753dec37afd526677f21de4b84e7e"> 40</a></span><a class="code hl_function" href="namespacexrpl.html#acea753dec37afd526677f21de4b84e7e">getNFTokenIDFromPage</a>(<a class="code hl_class" href="classxrpl_1_1TxMeta.html">TxMeta</a> <span class="keyword">const</span>&amp; transactionMeta)</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span>{</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// The metadata does not make it obvious which NFT was added. To figure</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// that out we gather up all of the previous NFT IDs and all of the final</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="comment">// NFT IDs and compare them to find what changed.</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;uint256&gt;</a> prevIDs;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;uint256&gt;</a> finalIDs;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">for</span> (<a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp; node : transactionMeta.<a class="code hl_function" href="classxrpl_1_1TxMeta.html#aae3c7e7480df539a62261c5fbb64de00">getNodes</a>())</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> {</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">if</span> (node.getFieldU16(sfLedgerEntryType) != ltNFTOKEN_PAGE)</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <a class="code hl_class" href="classxrpl_1_1SField.html">SField</a> <span class="keyword">const</span>&amp; fName = node.getFName();</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">if</span> (fName == sfCreatedNode)</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> {</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <a class="code hl_class" href="classxrpl_1_1STArray.html">STArray</a> <span class="keyword">const</span>&amp; toAddPrevNFTs = node.peekAtField(sfNewFields).<a class="code hl_function" href="classxrpl_1_1STBase.html#a2689c8d764e589cf3f9868fc80dcc650">downcast</a>&lt;<a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a>&gt;().getFieldArray(sfNFTokens);</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/transform.html">std::transform</a>(</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> toAddPrevNFTs.<a class="code hl_function" href="classxrpl_1_1STArray.html#a962481ae2e1c0412a272ba5ac3841f02">begin</a>(), toAddPrevNFTs.<a class="code hl_function" href="classxrpl_1_1STArray.html#af247e7dd360afaebc6434ffd1c55640b">end</a>(), <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/back_inserter.html">std::back_inserter</a>(finalIDs), [](<a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp; nft) {</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> return nft.getFieldH256(sfNFTokenID);</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> });</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> }</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (fName == sfModifiedNode)</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> {</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="comment">// When a mint results in splitting an existing page,</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// it results in a created page and a modified node. Sometimes,</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="comment">// the created node needs to be linked to a third page, resulting</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// in modifying that third page&#39;s PreviousPageMin or NextPageMin</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="comment">// field changing, but no NFTs within that page changing. In this</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="comment">// case, there will be no previous NFTs and we need to skip.</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="comment">// However, there will always be NFTs listed in the final fields,</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="comment">// as rippled outputs all fields in final fields even if they were</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// not changed.</span></div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp; previousFields = node.<a class="code hl_function" href="classxrpl_1_1STObject.html#a937c13c5ed8f84f265d7256797f1f955">peekAtField</a>(sfPreviousFields).<a class="code hl_function" href="classxrpl_1_1STBase.html#a2689c8d764e589cf3f9868fc80dcc650">downcast</a>&lt;<a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a>&gt;();</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keywordflow">if</span> (!previousFields.<a class="code hl_function" href="classxrpl_1_1STObject.html#a7d6985a9d10080aa21fbb8c570b6be6e">isFieldPresent</a>(sfNFTokens))</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <a class="code hl_class" href="classxrpl_1_1STArray.html">STArray</a> <span class="keyword">const</span>&amp; toAddPrevNFTs = previousFields.<a class="code hl_function" href="classxrpl_1_1STObject.html#a5e9d8cab06e54214df8ebcc25e43ce4c">getFieldArray</a>(sfNFTokens);</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/transform.html">std::transform</a>(</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> toAddPrevNFTs.<a class="code hl_function" href="classxrpl_1_1STArray.html#a962481ae2e1c0412a272ba5ac3841f02">begin</a>(), toAddPrevNFTs.<a class="code hl_function" href="classxrpl_1_1STArray.html#af247e7dd360afaebc6434ffd1c55640b">end</a>(), <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/back_inserter.html">std::back_inserter</a>(prevIDs), [](<a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp; nft) {</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> return nft.getFieldH256(sfNFTokenID);</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> });</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <a class="code hl_class" href="classxrpl_1_1STArray.html">STArray</a> <span class="keyword">const</span>&amp; toAddFinalNFTs =</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> node.peekAtField(sfFinalFields).<a class="code hl_function" href="classxrpl_1_1STBase.html#a2689c8d764e589cf3f9868fc80dcc650">downcast</a>&lt;<a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a>&gt;().getFieldArray(sfNFTokens);</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/transform.html">std::transform</a>(</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> toAddFinalNFTs.<a class="code hl_function" href="classxrpl_1_1STArray.html#a962481ae2e1c0412a272ba5ac3841f02">begin</a>(), toAddFinalNFTs.<a class="code hl_function" href="classxrpl_1_1STArray.html#af247e7dd360afaebc6434ffd1c55640b">end</a>(), <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/iterator/back_inserter.html">std::back_inserter</a>(finalIDs), [](<a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp; nft) {</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> return nft.getFieldH256(sfNFTokenID);</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> });</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> }</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> }</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// We expect NFTs to be added one at a time. So finalIDs should be one</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// longer than prevIDs. If that&#39;s not the case something is messed up.</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">if</span> (finalIDs.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() != prevIDs.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() + 1)</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">return</span> <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::nullopt</a>;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// Find the first NFT ID that doesn&#39;t match. We&#39;re looking for an</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// added NFT, so the one we want will be the mismatch in finalIDs.</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">auto</span> <span class="keyword">const</span> diff = <a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/algorithm/mismatch.html">std::mismatch</a>(finalIDs.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/begin.html">begin</a>(), finalIDs.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>(), prevIDs.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/begin.html">begin</a>(), prevIDs.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>());</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="comment">// There should always be a difference so the returned finalIDs</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="comment">// iterator should never be end(). But better safe than sorry.</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">if</span> (diff.first == finalIDs.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>())</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">return</span> <a class="code hl_variableRef" href="http://en.cppreference.com/w/cpp/types/is_same.html">std::nullopt</a>;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">return</span> *diff.first;</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span>}</div>
</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> </div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span><a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;uint256&gt;</a></div>
<div class="foldopen" id="foldopen00110" data-start="{" data-end="}">
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"><a class="line" href="namespacexrpl.html#a11677fa6d0c4c4810e13ef245754bca9"> 110</a></span><a class="code hl_function" href="namespacexrpl.html#a11677fa6d0c4c4810e13ef245754bca9">getNFTokenIDFromDeletedOffer</a>(<a class="code hl_class" href="classxrpl_1_1TxMeta.html">TxMeta</a> <span class="keyword">const</span>&amp; transactionMeta)</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span>{</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;uint256&gt;</a> tokenIDResult;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keywordflow">for</span> (<a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a> <span class="keyword">const</span>&amp; node : transactionMeta.<a class="code hl_function" href="classxrpl_1_1TxMeta.html#aae3c7e7480df539a62261c5fbb64de00">getNodes</a>())</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> {</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordflow">if</span> (node.getFieldU16(sfLedgerEntryType) != ltNFTOKEN_OFFER || node.getFName() != sfDeletedNode)</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> </div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keyword">auto</span> <span class="keyword">const</span>&amp; toAddNFT = node.peekAtField(sfFinalFields).downcast&lt;<a class="code hl_class" href="classxrpl_1_1STObject.html">STObject</a>&gt;().getFieldH256(sfNFTokenID);</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> tokenIDResult.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(toAddNFT);</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> }</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// Deduplicate the NFT IDs because multiple offers could affect the same NFT</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="comment">// and hence we would get duplicate NFT IDs</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> sort(tokenIDResult.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/begin.html">begin</a>(), tokenIDResult.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>());</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> tokenIDResult.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/erase.html">erase</a>(unique(tokenIDResult.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/begin.html">begin</a>(), tokenIDResult.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>()), tokenIDResult.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/end.html">end</a>());</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">return</span> tokenIDResult;</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span>}</div>
</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><span class="keywordtype">void</span></div>
<div class="foldopen" id="foldopen00130" data-start="{" data-end="}">
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"><a class="line" href="namespacexrpl.html#aaea096658fe4ae9ce562f27dd1437f98"> 130</a></span><a class="code hl_function" href="namespacexrpl.html#aaea096658fe4ae9ce562f27dd1437f98">insertNFTokenID</a>(<a class="code hl_class" href="classJson_1_1Value.html">Json::Value</a>&amp; response, <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;STTx const&gt;</a> <span class="keyword">const</span>&amp; transaction, <a class="code hl_class" href="classxrpl_1_1TxMeta.html">TxMeta</a> <span class="keyword">const</span>&amp; transactionMeta)</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span>{</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">if</span> (!<a class="code hl_function" href="namespacexrpl.html#a494a744b51f3f84d074af0ba65bf0546">canHaveNFTokenID</a>(transaction, transactionMeta))</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="comment">// We extract the NFTokenID from metadata by comparing affected nodes</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">if</span> (<span class="keyword">auto</span> <span class="keyword">const</span> type = transaction-&gt;getTxnType(); type == ttNFTOKEN_MINT)</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> {</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/utility/optional.html">std::optional&lt;uint256&gt;</a> result = <a class="code hl_function" href="namespacexrpl.html#acea753dec37afd526677f21de4b84e7e">getNFTokenIDFromPage</a>(transactionMeta);</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordflow">if</span> (result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/utility/optional/operator_bool.html">has_value</a>())</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> response[jss::nftoken_id] = <a class="code hl_function" href="namespacexrpl.html#a35ce7572092b98720a52fa343c6f2fa9">to_string</a>(result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/utility/optional/value.html">value</a>());</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> }</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == ttNFTOKEN_ACCEPT_OFFER)</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> {</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;uint256&gt;</a> result = <a class="code hl_function" href="namespacexrpl.html#a11677fa6d0c4c4810e13ef245754bca9">getNFTokenIDFromDeletedOffer</a>(transactionMeta);</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">if</span> (result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() &gt; 0)</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> response[jss::nftoken_id] = <a class="code hl_function" href="namespacexrpl.html#a35ce7572092b98720a52fa343c6f2fa9">to_string</a>(result.<a class="code hl_functionRef" href="http://en.cppreference.com/w/cpp/container/vector/front.html">front</a>());</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> }</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == ttNFTOKEN_CANCEL_OFFER)</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> {</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <a class="code hl_classRef" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector&lt;uint256&gt;</a> result = <a class="code hl_function" href="namespacexrpl.html#a11677fa6d0c4c4810e13ef245754bca9">getNFTokenIDFromDeletedOffer</a>(transactionMeta);</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> </div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> response[jss::nftoken_ids] = <a class="code hl_class" href="classJson_1_1Value.html">Json::Value</a>(<a class="code hl_enumvalue" href="namespaceJson.html#a7d654b75c16a57007925868e38212b4eadc8f264f36b55b063c78126b335415f4">Json::arrayValue</a>);</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span> <span class="keyword">const</span>&amp; nftID : result)</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> response[jss::nftoken_ids].append(<a class="code hl_function" href="namespacexrpl.html#a35ce7572092b98720a52fa343c6f2fa9">to_string</a>(nftID));</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> }</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span>}</div>
</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span>} <span class="comment">// namespace xrpl</span></div>
<div class="ttc" id="aalgorithm_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/algorithm.html">algorithm</a></div></div>
<div class="ttc" id="aback_inserter_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/back_inserter.html">std::back_inserter</a></div><div class="ttdeci">T back_inserter(T... args)</div></div>
<div class="ttc" id="abegin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/begin.html">std::vector::begin</a></div><div class="ttdeci">T begin(T... args)</div></div>
<div class="ttc" id="aclassJson_1_1Value_html"><div class="ttname"><a href="classJson_1_1Value.html">Json::Value</a></div><div class="ttdoc">Represents a JSON value.</div><div class="ttdef"><b>Definition</b> <a href="json__value_8h_source.html#l00130">json_value.h:131</a></div></div>
<div class="ttc" id="aclassxrpl_1_1SField_html"><div class="ttname"><a href="classxrpl_1_1SField.html">xrpl::SField</a></div><div class="ttdoc">Identifies fields.</div><div class="ttdef"><b>Definition</b> <a href="SField_8h_source.html#l00126">SField.h:127</a></div></div>
<div class="ttc" id="aclassxrpl_1_1STArray_html"><div class="ttname"><a href="classxrpl_1_1STArray.html">xrpl::STArray</a></div><div class="ttdef"><b>Definition</b> <a href="STArray_8h_source.html#l00009">STArray.h:10</a></div></div>
<div class="ttc" id="aclassxrpl_1_1STArray_html_a962481ae2e1c0412a272ba5ac3841f02"><div class="ttname"><a href="classxrpl_1_1STArray.html#a962481ae2e1c0412a272ba5ac3841f02">xrpl::STArray::begin</a></div><div class="ttdeci">iterator begin()</div><div class="ttdef"><b>Definition</b> <a href="STArray_8h_source.html#l00200">STArray.h:200</a></div></div>
<div class="ttc" id="aclassxrpl_1_1STArray_html_af247e7dd360afaebc6434ffd1c55640b"><div class="ttname"><a href="classxrpl_1_1STArray.html#af247e7dd360afaebc6434ffd1c55640b">xrpl::STArray::end</a></div><div class="ttdeci">iterator end()</div><div class="ttdef"><b>Definition</b> <a href="STArray_8h_source.html#l00206">STArray.h:206</a></div></div>
<div class="ttc" id="aclassxrpl_1_1STBase_html_a2689c8d764e589cf3f9868fc80dcc650"><div class="ttname"><a href="classxrpl_1_1STBase.html#a2689c8d764e589cf3f9868fc80dcc650">xrpl::STBase::downcast</a></div><div class="ttdeci">D &amp; downcast()</div><div class="ttdef"><b>Definition</b> <a href="STBase_8h_source.html#l00194">STBase.h:194</a></div></div>
<div class="ttc" id="aclassxrpl_1_1STObject_html"><div class="ttname"><a href="classxrpl_1_1STObject.html">xrpl::STObject</a></div><div class="ttdef"><b>Definition</b> <a href="STObject_8h_source.html#l00037">STObject.h:38</a></div></div>
<div class="ttc" id="aclassxrpl_1_1STObject_html_a5e9d8cab06e54214df8ebcc25e43ce4c"><div class="ttname"><a href="classxrpl_1_1STObject.html#a5e9d8cab06e54214df8ebcc25e43ce4c">xrpl::STObject::getFieldArray</a></div><div class="ttdeci">STArray const &amp; getFieldArray(SField const &amp;field) const</div><div class="ttdef"><b>Definition</b> <a href="STObject_8cpp_source.html#l00663">STObject.cpp:663</a></div></div>
<div class="ttc" id="aclassxrpl_1_1STObject_html_a7d6985a9d10080aa21fbb8c570b6be6e"><div class="ttname"><a href="classxrpl_1_1STObject.html#a7d6985a9d10080aa21fbb8c570b6be6e">xrpl::STObject::isFieldPresent</a></div><div class="ttdeci">bool isFieldPresent(SField const &amp;field) const</div><div class="ttdef"><b>Definition</b> <a href="STObject_8cpp_source.html#l00439">STObject.cpp:439</a></div></div>
<div class="ttc" id="aclassxrpl_1_1STObject_html_a937c13c5ed8f84f265d7256797f1f955"><div class="ttname"><a href="classxrpl_1_1STObject.html#a937c13c5ed8f84f265d7256797f1f955">xrpl::STObject::peekAtField</a></div><div class="ttdeci">STBase const &amp; peekAtField(SField const &amp;field) const</div><div class="ttdef"><b>Definition</b> <a href="STObject_8cpp_source.html#l00384">STObject.cpp:384</a></div></div>
<div class="ttc" id="aclassxrpl_1_1TxMeta_html"><div class="ttname"><a href="classxrpl_1_1TxMeta.html">xrpl::TxMeta</a></div><div class="ttdef"><b>Definition</b> <a href="TxMeta_8h_source.html#l00015">TxMeta.h:16</a></div></div>
<div class="ttc" id="aclassxrpl_1_1TxMeta_html_a2b0df9b58fbbd4f3175b7c66d4bb1dc6"><div class="ttname"><a href="classxrpl_1_1TxMeta.html#a2b0df9b58fbbd4f3175b7c66d4bb1dc6">xrpl::TxMeta::getResultTER</a></div><div class="ttdeci">TER getResultTER() const</div><div class="ttdef"><b>Definition</b> <a href="TxMeta_8h_source.html#l00038">TxMeta.h:38</a></div></div>
<div class="ttc" id="aclassxrpl_1_1TxMeta_html_aae3c7e7480df539a62261c5fbb64de00"><div class="ttname"><a href="classxrpl_1_1TxMeta.html#aae3c7e7480df539a62261c5fbb64de00">xrpl::TxMeta::getNodes</a></div><div class="ttdeci">STArray &amp; getNodes()</div><div class="ttdef"><b>Definition</b> <a href="TxMeta_8h_source.html#l00070">TxMeta.h:70</a></div></div>
<div class="ttc" id="aend_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/end.html">std::vector::end</a></div><div class="ttdeci">T end(T... args)</div></div>
<div class="ttc" id="aerase_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/erase.html">std::vector::erase</a></div><div class="ttdeci">T erase(T... args)</div></div>
<div class="ttc" id="afront_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/front.html">std::vector::front</a></div><div class="ttdeci">T front(T... args)</div></div>
<div class="ttc" id="ais_same_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/types/is_same.html">std::is_same_v</a></div><div class="ttdeci">T is_same_v</div></div>
<div class="ttc" id="aiterator_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/iterator.html">iterator</a></div></div>
<div class="ttc" id="amemory_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/memory.html">memory</a></div></div>
<div class="ttc" id="amismatch_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/mismatch.html">std::mismatch</a></div><div class="ttdeci">T mismatch(T... args)</div></div>
<div class="ttc" id="anamespaceJson_html_a7d654b75c16a57007925868e38212b4eadc8f264f36b55b063c78126b335415f4"><div class="ttname"><a href="namespaceJson.html#a7d654b75c16a57007925868e38212b4eadc8f264f36b55b063c78126b335415f4">Json::arrayValue</a></div><div class="ttdeci">@ arrayValue</div><div class="ttdoc">array value (ordered list)</div><div class="ttdef"><b>Definition</b> <a href="json__value_8h_source.html#l00026">json_value.h:26</a></div></div>
<div class="ttc" id="anamespacexrpl_html"><div class="ttname"><a href="namespacexrpl.html">xrpl</a></div><div class="ttdoc">Use hash_* containers for keys that do not need a cryptographically secure hashing algorithm.</div><div class="ttdef"><b>Definition</b> <a href="algorithm_8h_source.html#l00006">algorithm.h:6</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a11677fa6d0c4c4810e13ef245754bca9"><div class="ttname"><a href="namespacexrpl.html#a11677fa6d0c4c4810e13ef245754bca9">xrpl::getNFTokenIDFromDeletedOffer</a></div><div class="ttdeci">std::vector&lt; uint256 &gt; getNFTokenIDFromDeletedOffer(TxMeta const &amp;transactionMeta)</div><div class="ttdef"><b>Definition</b> <a href="NFTokenID_8cpp_source.html#l00110">NFTokenID.cpp:110</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a2302c0748b98cd689ea7eea653eda396"><div class="ttname"><a href="namespacexrpl.html#a2302c0748b98cd689ea7eea653eda396">xrpl::TxType</a></div><div class="ttdeci">TxType</div><div class="ttdoc">Transaction type identifiers.</div><div class="ttdef"><b>Definition</b> <a href="TxFormats_8h_source.html#l00037">TxFormats.h:38</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a35ce7572092b98720a52fa343c6f2fa9"><div class="ttname"><a href="namespacexrpl.html#a35ce7572092b98720a52fa343c6f2fa9">xrpl::to_string</a></div><div class="ttdeci">std::string to_string(base_uint&lt; Bits, Tag &gt; const &amp;a)</div><div class="ttdef"><b>Definition</b> <a href="base__uint_8h_source.html#l00598">base_uint.h:598</a></div></div>
<div class="ttc" id="anamespacexrpl_html_a494a744b51f3f84d074af0ba65bf0546"><div class="ttname"><a href="namespacexrpl.html#a494a744b51f3f84d074af0ba65bf0546">xrpl::canHaveNFTokenID</a></div><div class="ttdeci">bool canHaveNFTokenID(std::shared_ptr&lt; STTx const &gt; const &amp;serializedTx, TxMeta const &amp;transactionMeta)</div><div class="ttdoc">Add a nftoken_ids field to the meta output parameter.</div><div class="ttdef"><b>Definition</b> <a href="NFTokenID_8cpp_source.html#l00023">NFTokenID.cpp:23</a></div></div>
<div class="ttc" id="anamespacexrpl_html_aaea096658fe4ae9ce562f27dd1437f98"><div class="ttname"><a href="namespacexrpl.html#aaea096658fe4ae9ce562f27dd1437f98">xrpl::insertNFTokenID</a></div><div class="ttdeci">void insertNFTokenID(Json::Value &amp;response, std::shared_ptr&lt; STTx const &gt; const &amp;transaction, TxMeta const &amp;transactionMeta)</div><div class="ttdef"><b>Definition</b> <a href="NFTokenID_8cpp_source.html#l00130">NFTokenID.cpp:130</a></div></div>
<div class="ttc" id="anamespacexrpl_html_acea753dec37afd526677f21de4b84e7e"><div class="ttname"><a href="namespacexrpl.html#acea753dec37afd526677f21de4b84e7e">xrpl::getNFTokenIDFromPage</a></div><div class="ttdeci">std::optional&lt; uint256 &gt; getNFTokenIDFromPage(TxMeta const &amp;transactionMeta)</div><div class="ttdef"><b>Definition</b> <a href="NFTokenID_8cpp_source.html#l00040">NFTokenID.cpp:40</a></div></div>
<div class="ttc" id="anamespacexrpl_html_af4adbbe94a1cecf1bd3ad2c76ff1ea3da157dace29a657c58cdeb4f7fa19be976"><div class="ttname"><a href="namespacexrpl.html#af4adbbe94a1cecf1bd3ad2c76ff1ea3da157dace29a657c58cdeb4f7fa19be976">xrpl::tesSUCCESS</a></div><div class="ttdeci">@ tesSUCCESS</div><div class="ttdef"><b>Definition</b> <a href="TER_8h_source.html#l00227">TER.h:226</a></div></div>
<div class="ttc" id="aoperator_bool_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/optional/operator_bool.html">std::optional::has_value</a></div><div class="ttdeci">T has_value(T... args)</div></div>
<div class="ttc" id="aoptional_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/optional.html">optional</a></div></div>
<div class="ttc" id="apush_back_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">std::vector::push_back</a></div><div class="ttdeci">T push_back(T... args)</div></div>
<div class="ttc" id="ashared_ptr_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a></div></div>
<div class="ttc" id="asize_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/size.html">std::vector::size</a></div><div class="ttdeci">T size(T... args)</div></div>
<div class="ttc" id="atransform_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/transform.html">std::transform</a></div><div class="ttdeci">T transform(T... args)</div></div>
<div class="ttc" id="avalue_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/optional/value.html">std::optional::value</a></div><div class="ttdeci">T value(T... args)</div></div>
<div class="ttc" id="avector_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/header/vector.html">vector</a></div></div>
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